基于RSEI的乌鲁木齐市生态环境质量时空演变研究

卢响军; 闫逸斐; 辛燕; 孙宇颖

引用本文:	卢响军,闫逸斐,辛燕,孙宇颖.基于RSEI的乌鲁木齐市生态环境质量时空演变研究[J].环境监控与预警,2024,16(6):109-116
	LU Xiangjun,YAN Yifei,XIN Yan,SUN Yuying.Study on the Spatial and Temporal Evolution of Ecological Environment in Urumqi Based on RSEI[J].Environmental Monitoring and Forewarning,2024,16(6):109-116

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基于RSEI的乌鲁木齐市生态环境质量时空演变研究
卢响军¹，闫逸斐²，辛燕²，孙宇颖^3*
1.新疆生产建设兵团生态环境第四监测站，新疆可克达拉 835900；2.南京信息工程大学遥感与测绘工程学院，江苏南京 210044；3.新疆生产建设兵团生态环境第一监测站，新疆乌鲁木齐 830000

摘要:

利用中分辨率成像光谱仪（MODIS）遥感影像数据，通过谷歌地球引擎（GEE）平台构建了乌鲁木齐市2003—2022年的遥感生态环境指数（RSEI），并采用泰尔-森（Theil-Sen）中位数法和曼-肯德尔（Mann-Kendall，MK）检验方法对RSEI的时空变化趋势进行了分析。结果表明：（1）乌鲁木齐市2003—2022年的RSEI平均值为0.37，整体生态环境质量处于中等偏下水平。RSEI表现出明显的空间差异，呈现出自南向北递减的空间变化趋势。（2）2003—2022年，乌鲁木齐市整体RSEI上升趋势值为0.02/10 a。具体来看，增长趋势主要集中在2003—2016年间，RSEI增长率为0.07/10 a。2003—2016年，RSEI呈现波动增长的趋势，但2016—2022年间，RSEI呈现显著下降趋势，下降率为0.21/10 a。（3）2003—2022年间，乌鲁木齐市RSEI下降区域主要分布在南部（乌鲁木齐县南缘）以及东部（达坂城东北部），RSEI增长区域主要分布在中部以及北部（米东区）。从2016—2022年RSEI的变化趋势来看，中部和北部的RSEI有下降趋势，后期应重点关注这2个区域的生态环境改善。

关键词: 乌鲁木齐遥感生态指数生态质量评价时空演变

DOI：DOI：10.3969/j.issn.1674-6732.2024.06.017

分类号:X82

基金项目:兵团重点领域科技攻关计划（2022AB016）；兵团科技发展专项（2018AB026）

Study on the Spatial and Temporal Evolution of Ecological Environment in Urumqi Based on RSEI

LU Xiangjun¹， YAN Yifei²， XIN Yan²， SUN Yuying^3*

1.The Fourth Ecological Environment Monitoring Station of Xinjiang Production and Construction Corps， Kokdara， Xinjiang 835900， China；2.School of Remote Sensing and Geomatics， Nanjing University of Information Science and Technology， Nanjing， Jiangsu 210044， China；3.The First Ecological Environment Monitoring Station of Xinjiang Production and Construction Corps， Urumqi， Xinjiang 830000， China

Abstract:

This paper investigated the remote sensing ecological index（RSEI） over Urumqi from 2003 to 2022 based on MODIS remote sensing data and the Google Earth Engine（GEE） platform. Then， the Theil-Sen Median and Mann-Kendall methods were used to analyze spatio-temporal variations of RSEI. The results showed that：（1） The average RSEI of Urumqi from 2003 to 2022 was 0.37， suggesting a slightly lower level of overall environmental quality. The RSEI exhibited significant spatial differences， with a spatial trend of gradual decrease from south to north.（2） From 2003 to 2022， the overall RSEI of Urumqi showed a trend of increasing by 0.02 every 10 years. Specifically， the increasing trend occurred mainly in the period of 2003—2016， with a rate of 0.07 per 10 years.（3） During the period from 2003 to 2022， the RSEI of Urumqi exhibited a decrease in the southern region（southern edge of Urumqi County） and the eastern region（northeastern part of Dabancheng）， and an increase in the central and northern regions（Midong）. However， from 2016 to 2022， the RSEI showed a decreasing trend in the central and northern regions， calling for attention on improving the ecological environment in these areas in the future.

Key words: Urumqi Remote sensing ecological index Ecological quality assessment Spatial and temporal evolution